Commit Graph

89986 Commits

Author SHA1 Message Date
Al Viro
2a46eed54a Wrong page freed on preallocate_pmds() failure exit
Note that pmds[i] is simply uninitialized at that point...

Granted, it's very hard to hit (you need split page locks *and*
kmalloc(sizeof(spinlock_t), GFP_KERNEL) failing), but the code is
obviously bogus.

Introduced by commit 09ef493985 ("x86: add missed
pgtable_pmd_page_ctor/dtor calls for preallocated pmds")

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-20 14:22:14 -08:00
Linus Torvalds
82023bb7f7 More ACPI and power management updates for 3.13-rc1
- ACPI-based device hotplug fixes for issues introduced recently and
   a fix for an older error code path bug in the ACPI PCI host bridge
   driver.
 
 - Fix for recently broken OMAP cpufreq build from Viresh Kumar.
 
 - Fix for a recent hibernation regression related to s2disk.
 
 - Fix for a locking-related regression in the ACPI EC driver from
   Puneet Kumar.
 
 - System suspend error code path fix related to runtime PM and
   runtime PM documentation update from Ulf Hansson.
 
 - cpufreq's conservative governor fix from Xiaoguang Chen.
 
 - New processor IDs for intel_idle and turbostat and removal of
   an obsolete Kconfig option from Len Brown.
 
 - New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
   ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg.
 
 - Removal of several ACPI video DMI blacklist entries that are not
   necessary any more from Aaron Lu.
 
 - Rework of the ACPI companion representation in struct device and
   code cleanup related to that change from Rafael J Wysocki,
   Lan Tianyu and Jarkko Nikula.
 
 - Fixes for assigning names to ACPI-enumerated I2C and SPI devices
   from Jarkko Nikula.
 
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Merge tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management updates from Rafael Wysocki:

 - ACPI-based device hotplug fixes for issues introduced recently and a
   fix for an older error code path bug in the ACPI PCI host bridge
   driver

 - Fix for recently broken OMAP cpufreq build from Viresh Kumar

 - Fix for a recent hibernation regression related to s2disk

 - Fix for a locking-related regression in the ACPI EC driver from
   Puneet Kumar

 - System suspend error code path fix related to runtime PM and runtime
   PM documentation update from Ulf Hansson

 - cpufreq's conservative governor fix from Xiaoguang Chen

 - New processor IDs for intel_idle and turbostat and removal of an
   obsolete Kconfig option from Len Brown

 - New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
   ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg

 - Removal of several ACPI video DMI blacklist entries that are not
   necessary any more from Aaron Lu

 - Rework of the ACPI companion representation in struct device and code
   cleanup related to that change from Rafael J Wysocki, Lan Tianyu and
   Jarkko Nikula

 - Fixes for assigning names to ACPI-enumerated I2C and SPI devices from
   Jarkko Nikula

* tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
  PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration
  ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()
  ACPI / PCI root: Clear driver_data before failing enumeration
  ACPI / hotplug: Fix PCI host bridge hot removal
  ACPI / hotplug: Fix acpi_bus_get_device() return value check
  cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs()
  ACPI / video: clean up DMI table for initial black screen problem
  ACPI / EC: Ensure lock is acquired before accessing ec struct members
  PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps()
  ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac
  spi: Use stable dev_name for ACPI enumerated SPI slaves
  i2c: Use stable dev_name for ACPI enumerated I2C slaves
  ACPI: Provide acpi_dev_name accessor for struct acpi_device device name
  ACPI / bind: Use (put|get)_device() on ACPI device objects too
  ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro
  ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node
  cpufreq: OMAP: Fix compilation error 'r & ret undeclared'
  PM / Runtime: Fix error path for prepare
  PM / Runtime: Update documentation around probe|remove|suspend
  cpufreq: conservative: set requested_freq to policy max when it is over policy max
  ...
2013-11-20 13:25:04 -08:00
Linus Torvalds
e6d69a60b7 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine changes from Vinod Koul:
 "This brings for slave dmaengine:

   - Change dma notification flag to DMA_COMPLETE from DMA_SUCCESS as
     dmaengine can only transfer and not verify validaty of dma
     transfers

   - Bunch of fixes across drivers:

      - cppi41 driver fixes from Daniel

      - 8 channel freescale dma engine support and updated bindings from
        Hongbo

      - msx-dma fixes and cleanup by Markus

   - DMAengine updates from Dan:

      - Bartlomiej and Dan finalized a rework of the dma address unmap
        implementation.

      - In the course of testing 1/ a collection of enhancements to
        dmatest fell out.  Notably basic performance statistics, and
        fixed / enhanced test control through new module parameters
        'run', 'wait', 'noverify', and 'verbose'.  Thanks to Andriy and
        Linus [Walleij] for their review.

      - Testing the raid related corner cases of 1/ triggered bugs in
        the recently added 16-source operation support in the ioatdma
        driver.

      - Some minor fixes / cleanups to mv_xor and ioatdma"

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (99 commits)
  dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers
  dma: mv_xor: Remove unneeded NULL address check
  ioat: fix ioat3_irq_reinit
  ioat: kill msix_single_vector support
  raid6test: add new corner case for ioatdma driver
  ioatdma: clean up sed pool kmem_cache
  ioatdma: fix selection of 16 vs 8 source path
  ioatdma: fix sed pool selection
  ioatdma: Fix bug in selftest after removal of DMA_MEMSET.
  dmatest: verbose mode
  dmatest: convert to dmaengine_unmap_data
  dmatest: add a 'wait' parameter
  dmatest: add basic performance metrics
  dmatest: add support for skipping verification and random data setup
  dmatest: use pseudo random numbers
  dmatest: support xor-only, or pq-only channels in tests
  dmatest: restore ability to start test at module load and init
  dmatest: cleanup redundant "dmatest: " prefixes
  dmatest: replace stored results mechanism, with uniform messages
  Revert "dmatest: append verify result to results"
  ...
2013-11-20 13:20:24 -08:00
Linus Torvalds
4457e6f6c9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Two merge window fallout build fixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: merge fix
  sparc64: fix build regession
2013-11-19 15:50:03 -08:00
Linus Torvalds
dec8e46178 Final set of ARC changes for 3.13-rc1
* Support for Perf from Mischa
 * Enabling GPIO/Pinctrl drivers for Abilis TB10x platform
 * New defconfig for buildroot
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Merge tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull second set of ARC changes from Vineet Gupta:
 - Support for Perf from Mischa
 - Enabling GPIO/Pinctrl drivers for Abilis TB10x platform
 - New defconfig for buildroot

* tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [plat-arcfpga] Add defconfig without initramfs location
  ARC: perf: ARC 700 PMU doesn't support sampling events
  ARC: Add documentation on DT binding for ARC700 PMU
  ARC: Add perf support for ARC700 cores
  ARC: [TB10x] Updates for GPIO and pinctrl
2013-11-19 11:44:15 -08:00
Linus Torvalds
806dace637 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull second set of s390 patches from Martin Schwidefsky:
 "The handling of the PCI hotplug notifications has been improved, the
  zfcp dumper can now detect the HSA size dynamically and the default
  install kernel has been changed to the compressed bzImage.  And two
  bug-fixes for scm and 3720"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/pci: implement hotplug notifications
  s390/scm_block: do not hide eadm subchannel dependency
  s390/sclp: Consolidate early sclp init calls to sclp_early_detect()
  s390/sclp: Move early code from sclp_cmd.c to sclp_early.c
  s390/sclp: Determine HSA size dynamically for zfcpdump
  s390/sclp: Move declarations for sclp_sdias into separate header file
  s390/pci: implement pcibios_remove_bus
  s390/pci: improve handling of bus resources
  s390/3270: fix missing device_destroy() call
  s390/boot: Install bzImage as default kernel image
2013-11-19 11:43:21 -08:00
Linus Torvalds
cdc7ef8981 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML changes from Richard Weinberger:
 "This pile contains a nice defconfig cleanup, a rewritten stack
  unwinder and various cleanups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Remove unused declarations from <as-layout.h>
  um: remove used STDIO_CONSOLE Kconfig param
  um/vdso: add .gitignore for a couple of targets
  arch/um: make it work with defconfig and x86_64
  um: Make kstack_depth_to_print conform to arch/x86
  um: Get rid of thread_struct->saved_task
  um: Make stack trace reliable against kernel mode faults
  um: Rewrite show_stack()
2013-11-19 11:42:32 -08:00
Linus Torvalds
9066d9b250 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
 "A modular build fix for certain .config's"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Export 'boot_cpu_physical_apicid' to modules
2013-11-19 10:48:19 -08:00
Linus Torvalds
4007162647 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq cleanups from Ingo Molnar:
 "This is a multi-arch cleanup series from Thomas Gleixner, which we
  kept to near the end of the merge window, to not interfere with
  architecture updates.

  This series (motivated by the -rt kernel) unifies more aspects of IRQ
  handling and generalizes PREEMPT_ACTIVE"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  preempt: Make PREEMPT_ACTIVE generic
  sparc: Use preempt_schedule_irq
  ia64: Use preempt_schedule_irq
  m32r: Use preempt_schedule_irq
  hardirq: Make hardirq bits generic
  m68k: Simplify low level interrupt handling code
  genirq: Prevent spurious detection for unconditionally polled interrupts
2013-11-19 10:40:00 -08:00
Rafael J. Wysocki
6431b43097 Merge branch 'pm-tools'
* pm-tools:
  tools / power turbostat: Support Silvermont
2013-11-19 01:06:38 +01:00
Linus Torvalds
27b5c3f3cc Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog changes from Wim Van Sebroeck:
 - addition of MOXA ART watchdog driver (moxart_wdt)
 - addition of CSR SiRFprimaII and SiRFatlasVI watchdog driver
   (sirfsoc_wdt)
 - addition of ralink watchdog driver (rt2880_wdt)
 - various fixes and cleanups (__user annotation, ioctl return codes,
   removal of redundant of_match_ptr, removal of unnecessary
   amba_set_drvdata(), use allocated buffer for usb_control_msg, ...)
 - removal of MODULE_ALIAS_MISCDEV statements
 - watchdog related DT bindings
 - first set of improvements on the w83627hf_wdt driver

* git://www.linux-watchdog.org/linux-watchdog: (26 commits)
  watchdog: w83627hf: Use helper functions to access superio registers
  watchdog: w83627hf: Enable watchdog device only if not already enabled
  watchdog: w83627hf: Enable watchdog only once
  watchdog: w83627hf: Convert to watchdog infrastructure
  watchdog: omap_wdt: raw read and write endian fix
  watchdog: sirf: don't depend on dummy value of CLOCK_TICK_RATE
  watchdog: pcwd_usb: overflow in usb_pcwd_send_command()
  watchdog: rt2880_wdt: fix return value check in rt288x_wdt_probe()
  watchdog: watchdog_core: Fix a trivial typo
  watchdog: dw: Enable OF support for DW watchdog timer
  watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
  watchdog: ts72xx_wdt: Propagate return value from timeout_to_regval
  watchdog: pcwd_usb: Use allocated buffer for usb_control_msg
  watchdog: sp805_wdt: Remove unnecessary amba_set_drvdata()
  watchdog: sirf: add watchdog driver of CSR SiRFprimaII and SiRFatlasVI
  watchdog: Remove redundant of_match_ptr
  watchdog: ts72xx_wdt: cleanup return codes in ioctl
  documentation/devicetree: Move DT bindings from gpio to watchdog
  watchdog: add ralink watchdog driver
  watchdog: Add MOXA ART watchdog driver
  ...
2013-11-18 15:56:13 -08:00
Linus Torvalds
13509c3a9d Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c changes from Wolfram Sang:
 - new drivers for exynos5, bcm kona, and st micro
 - bigger overhauls for drivers mxs and rcar
 - typical driver bugfixes, cleanups, improvements
 - got rid of the superfluous 'driver' member in i2c_client struct This
   touches a few drivers in other subsystems.  All acked.

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
  i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()
  i2c: i2c-eg20t: do not print error message in syslog if no ACK received
  i2c: bcm-kona: Introduce Broadcom I2C Driver
  i2c: cbus-gpio: Fix device tree binding
  i2c: wmt: add missing clk_disable_unprepare() on error
  i2c: designware: add new ACPI IDs
  i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH
  i2c: exynos5: Remove incorrect clk_disable_unprepare
  i2c: i2c-st: Add ST I2C controller
  i2c: exynos5: add High Speed I2C controller driver
  i2c: rcar: fixup rcar type naming
  i2c: scmi: remove some bogus NULL checks
  i2c: sh_mobile & rcar: Enable the driver on all ARM platforms
  i2c: sh_mobile: Convert to clk_prepare/unprepare
  i2c: mux: gpio: use reg value for i2c_add_mux_adapter
  i2c: mux: gpio: use gpio_set_value_cansleep()
  i2c: Include linux/of.h header
  i2c: mxs: Fix PIO mode on i.MX23
  i2c: mxs: Rework the PIO mode operation
  i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller
  ...
2013-11-18 15:50:07 -08:00
Linus Torvalds
a709bd585f Highlights:
- A new driver for TI BQ24735 Battery Chargers, courtesy of NVidia.
 
 - Device tree bindings for TWL4030 chips.
 
 - Random fixes and cleanups.
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Merge tag 'for-v3.13' of git://git.infradead.org/battery-2.6

Pull battery updates from Anton Vorontsov:
 "Highlights:
   - A new driver for TI BQ24735 Battery Chargers, courtesy of NVidia.
   - Device tree bindings for TWL4030 chips.
   - Random fixes and cleanups"

* tag 'for-v3.13' of git://git.infradead.org/battery-2.6:
  pm2301-charger: Remove unneeded NULL checks
  twl4030_charger: Add devicetree support
  power_supply: Fix documentation for TEMP_*ALERT* properties
  max17042_battery: Support regmap to access device's registers
  max17042_battery: Use SIMPLE_DEV_PM_OPS
  charger-manager : Replace kzalloc to devm_kzalloc and remove uneccessary code
  bq2415x_charger: Fix max battery regulation voltage
  tps65090-charger: Use "IS_ENABLED(CONFIG_OF)" for DT code
  tps65090-charger: Drop devm_free_irq of devm_ allocated irq
  power_supply: Add support for bq24735 charger
  pm2301-charger: Staticize pm2xxx_charger_die_therm_mngt
  pm2301-charger: Check return value of regulator_enable
  ab8500-charger: Remove redundant break
  ab8500-charger: Check return value of regulator_enable
  isp1704_charger: Fix driver to work with changes introduced in v3.5
2013-11-18 15:35:09 -08:00
Stephen Rothwell
6a328f3fe0 sparc64: merge fix
After merging the final tree, today's linux-next build (sparc64 defconfig)
failed like this:

arch/sparc/mm/init_64.c: In function 'pte_alloc_one':
arch/sparc/mm/init_64.c:2568:9: error: unused variable 'pte' [-Werror=unused-variable]

Caused by the merge between commit 37b3a8ff3e ("sparc64: Move from 4MB
to 8MB huge pages") and commit 1ae9ae5f7d ("sparc: handle
pgtable_page_ctor() fail") (I had the following merge fix in linux-next,
but it didn't seem to propagate upstream - may have forgotten to point it
out :-().

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-18 15:08:52 -08:00
Kirill A. Shutemov
6469c842ec sparc64: fix build regession
Commit ea1e7ed337 triggers build regression on sparc64.

include/linux/mm.h:1391:2: error: implicit declaration of function 'pgtable_cache_init' [-Werror=implicit-function-declaration]
arch/sparc/include/asm/pgtable_64.h:978:13: error: conflicting types for 'pgtable_cache_init' [-Werror]

It happens due headers include loop:

<linux/mm.h> -> <asm/pgtable.h> -> <asm/pgtable_64.h> ->
	<asm/tlbflush.h> -> <asm/tlbflush_64.h> -> <linux/mm.h>

Let's drop <linux/mm.h> include from asm/tlbflush_64.h.
Build tested with allmodconfig.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-18 15:07:35 -08:00
Linus Torvalds
794e96e8ec EDAC updates for 3.13
Highlights:
 
 * Support for Calxeda ECX-2000 memory controller, from Robert Richter
 
 * Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob Herring
   and Robert Richter
 
 * New maintainer for Freescale's MPC85xx EDAC driver: Johannes Thumshirn
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Merge tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:
 "Following up on last week's discussion, here's my part of the EDAC
  pile, highlights in the signed tag.

  The last two patches have a date from just now because I've just
  applied them to the tree after Johannes sent them to me earlier.  I
  decided to forward them now because they're trivial.

  There's a third one for MPC85xx which adds PCIe error interrupt
  support but since it is not so trivial and hasn't seen any linux-next
  time, I'm deferring it to 3.14

  EDAC update highlights:
   - Support for Calxeda ECX-2000 memory controller, from Robert Richter
   - Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob
     Herring and Robert Richter
   - New maintainer for Freescale's MPC85xx EDAC driver: Johannes
     Thumshirn"

* tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  edac/85xx: Remove mpc85xx_pci_err_remove
  EDAC: Add edac-mpc85xx driver to MAINTAINERS
  edac, highbank: Moving error injection to sysfs for edac
  edac, highbank: Add MAINTAINERS entry
  edac: Unify reporting of device info for device, mc and pci
  edac, highbank: Improve and unify naming
  edac, highbank: Add Calxeda ECX-2000 support
  ARM: dts: calxeda: move memory-controller node out of ecx-common.dtsi
  edac, highbank: Fix interrupt setup of mem and l2 controller
2013-11-18 14:50:17 -08:00
Linus Torvalds
c2ac2ae44d MMC highlights for 3.13:
Core:
  - Improve runtime PM support, remove mmc_{suspend,resume}_host().
  - Add MMC_CAP_RUNTIME_RESUME, for delaying MMC resume until we're
    outside of the resume sequence (in runtime_resume) to decrease
    system resume time.
 
 Drivers:
  - dw_mmc: Support HS200 mode.
  - sdhci-eshdc-imx: Support SD3.0 SDR clock tuning, DDR on IMX6.
  - sdhci-pci: Add support for Intel Clovertrail and Merrifield.
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Merge tag 'mmc-updates-for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.13:

  Core:
   - Improve runtime PM support, remove mmc_{suspend,resume}_host().
   - Add MMC_CAP_RUNTIME_RESUME, for delaying MMC resume until we're
     outside of the resume sequence (in runtime_resume) to decrease
     system resume time.

  Drivers:
   - dw_mmc: Support HS200 mode.
   - sdhci-eshdc-imx: Support SD3.0 SDR clock tuning, DDR on IMX6.
   - sdhci-pci: Add support for Intel Clovertrail and Merrifield"

* tag 'mmc-updates-for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (108 commits)
  mmc: wbsd: Silence compiler warning
  mmc: core: Silence compiler warning in __mmc_switch
  mmc: sh_mmcif: Convert to clk_prepare|unprepare
  mmc: sh_mmcif: Convert to PM macros when defining dev_pm_ops
  mmc: dw_mmc: exynos: Revert the sdr_timing assignment
  mmc: sdhci: Avoid needless loop while handling SDIO interrupts in sdhci_irq
  mmc: core: Add MMC_CAP_RUNTIME_RESUME to resume at runtime_resume
  mmc: core: Improve runtime PM support during suspend/resume for sd/mmc
  mmc: core: Remove redundant mmc_power_up|off at runtime callbacks
  mmc: Don't force card to active state when entering suspend/shutdown
  MIPS: db1235: Don't use MMC_CLKGATE
  mmc: core: Remove deprecated mmc_suspend|resume_host APIs
  mmc: mmci: Move away from using deprecated APIs
  mmc: via-sdmmc: Move away from using deprecated APIs
  mmc: tmio: Move away from using deprecated APIs
  mmc: sh_mmcif: Move away from using deprecated APIs
  mmc: sdricoh_cs: Move away from using deprecated APIs
  mmc: rtsx: Remove redundant suspend and resume callbacks
  mmc: wbsd: Move away from using deprecated APIs
  mmc: pxamci: Remove redundant suspend and resume callbacks
  ...
2013-11-18 14:47:30 -08:00
Xianglong Du
f0fcbdbf20 watchdog: sirf: add watchdog driver of CSR SiRFprimaII and SiRFatlasVI
On CSR SiRFprimaII and SiRFatlasVI, the 6th timer can act as a watchdog
timer when the Watchdog mode is enabled.

watchdog occur when TIMER watchdog counter matches the value software
pre-set, when this event occurs, the effect is the same as the system
software reset.

Signed-off-by: Xianglong Du <Xianglong.Du@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Romain Izard <romain.izard.pro@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-11-17 19:37:23 +01:00
Geert Uytterhoeven
33a7d42999 um: Remove unused declarations from <as-layout.h>
_end is used, but it's already provided by <asm/sections.h>, so use that.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:39:22 +01:00
Michael Opdenacker
a851aebc36 um: remove used STDIO_CONSOLE Kconfig param
This removes the STDIO_CONSOLE Kconfig parameter which
is defined but no longer used anywhere in the makefiles and source code.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:32:27 +01:00
Ramkumar Ramachandra
b13a9bfc79 um/vdso: add .gitignore for a couple of targets
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:32:07 +01:00
Ramkumar Ramachandra
e40f04d040 arch/um: make it work with defconfig and x86_64
arch/um/defconfig only lists one default configuration, and that applies
only to the i386 architecture.  Replace it with two minimal
configuration files generated using `make savedefconfig`:

  i386_defconfig and x86_64_defconfig

The build scripts now require two updates:

1. um's Kconfig (arch/x86/um/Kconfig) should specify an ARCH_DEFCONFIG
   section explicitly pointing to these scripts if the required
   variables are set.  Take care to remove the DEFCONFIG_LIST section
   defined in the included file arch/um/Kconfig.common.

2. um's Makefile (arch/um/Makefile) should set KBUILD_DEFCONFIG properly
   for the top-level Makefile to pick up.  Copy the logic in
   arch/x86/Makefile to properly pick the defconfig file depending on
   the actual architecture; except we're working with $SUBARCH here,
   instead of $ARCH.

Now, you can do:

  $ ARCH=um make defconfig
  $ ARCH=um make

and successfully build User-Mode Linux on an x86_64 box in default
configuration.

Cc: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:31:48 +01:00
Richard Weinberger
e96d1c3695 um: Make kstack_depth_to_print conform to arch/x86
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:27:40 +01:00
Richard Weinberger
a1850e9c72 um: Get rid of thread_struct->saved_task
As we have a sane show_stack() now, we can drop
the ->saved_task hack.

Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:27:35 +01:00
Richard Weinberger
f72c22e45e um: Make stack trace reliable against kernel mode faults
As UML uses an alternative signal stack we cannot use
the current stack pointer for stack dumping if UML itself
dies by SIGSEGV. To bypass this issue we save regs taken
from mcontext in our segv handler into thread_struct and
use these regs to obtain the stack pointer in show_stack().

Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:27:30 +01:00
Richard Weinberger
9d1ee8ce92 um: Rewrite show_stack()
Currently on UML stack traces are not very reliable and both
x86 and x86_64 have their on implementations.
This patch unifies both and adds support to outline unreliable
functions calls.

Signed-off-by: Richard Weinberger <richard@nod.at>
2013-11-17 11:27:25 +01:00
Linus Torvalds
71f777ed50 ARM: SoC fixes for 3.13 merge window
A first set of batches of fixes for 3.13. The diffstat is large mostly
 because we're adding a defconfig for a family that's been lacking it, and
 there's some missing clock information added for i.MX and OMAP.
 
 The at91 new code is around dealing with RTC/RTT reset at boot to fix possible
 hangs due to pending wakeup interrupts coming in during early boot.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A first set of batches of fixes for 3.13.  The diffstat is large
  mostly because we're adding a defconfig for a family that's been
  lacking it, and there's some missing clock information added for i.MX
  and OMAP.

  The at91 new code is around dealing with RTC/RTT reset at boot to fix
  possible hangs due to pending wakeup interrupts coming in during early
  boot"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
  ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume
  doc: devicetree: Add bindings documentation for omap-des driver
  ARM: dts: doc: Document missing compatible property for omap-sham driver
  ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()
  ARM: at91: fix hanged boot due to early rtt-interrupt
  ARM: at91: fix hanged boot due to early rtc-interrupt
  video: exynos_mipi_dsim: Remove unused variable
  ARM: highbank: only select errata 764369 if SMP
  ARM: sti: only select errata 764369 if SMP
  ARM: tegra: init fuse before setting reset handler
  ARM: vt8500: add defconfig for v6/v7 chips
  ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD
  ARM: OMAP: devicetree: fix SPI node compatible property syntax items
  pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed
  ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init()
  MAINTAINERS: drop discontinued mailing list
  ARM: dts: i.MX51: Fix OTG PHY clock
  ARM: imx: set up pllv3 POWER and BYPASS sequentially
  ARM: imx: pllv3 needs relock in .set_rate() call
  ...
2013-11-16 12:45:55 -08:00
Linus Torvalds
b29c8306a3 This batch of changes is mostly clean ups and small bug fixes.
The only real feature that was added this release is from Namhyung Kim,
 who introduced "set_graph_notrace" filter that lets you run the function
 graph tracer and not trace particular functions and their call chain.
 
 Tom Zanussi added some updates to the ftrace multibuffer tracing that
 made it more consistent with the top level tracing.
 
 One of the fixes for perf function tracing required an API change in
 RCU; the addition of "rcu_is_watching()". As Paul McKenney is pushing
 that change in this release too, he gave me a branch that included
 all the changes to get that working, and I pulled that into my tree
 in order to complete the perf function tracing fix.
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Merge tag 'trace-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing update from Steven Rostedt:
 "This batch of changes is mostly clean ups and small bug fixes.  The
  only real feature that was added this release is from Namhyung Kim,
  who introduced "set_graph_notrace" filter that lets you run the
  function graph tracer and not trace particular functions and their
  call chain.

  Tom Zanussi added some updates to the ftrace multibuffer tracing that
  made it more consistent with the top level tracing.

  One of the fixes for perf function tracing required an API change in
  RCU; the addition of "rcu_is_watching()".  As Paul McKenney is pushing
  that change in this release too, he gave me a branch that included all
  the changes to get that working, and I pulled that into my tree in
  order to complete the perf function tracing fix"

* tag 'trace-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Add rcu annotation for syscall trace descriptors
  tracing: Do not use signed enums with unsigned long long in fgragh output
  tracing: Remove unused function ftrace_off_permanent()
  tracing: Do not assign filp->private_data to freed memory
  tracing: Add helper function tracing_is_disabled()
  tracing: Open tracer when ftrace_dump_on_oops is used
  tracing: Add support for SOFT_DISABLE to syscall events
  tracing: Make register/unregister_ftrace_command __init
  tracing: Update event filters for multibuffer
  recordmcount.pl: Add support for __fentry__
  ftrace: Have control op function callback only trace when RCU is watching
  rcu: Do not trace rcu_is_watching() functions
  ftrace/x86: skip over the breakpoint for ftrace caller
  trace/trace_stat: use rbtree postorder iteration helper instead of opencoding
  ftrace: Add set_graph_notrace filter
  ftrace: Narrow down the protected area of graph_lock
  ftrace: Introduce struct ftrace_graph_data
  ftrace: Get rid of ftrace_graph_filter_enabled
  tracing: Fix potential out-of-bounds in trace_get_user()
  tracing: Show more exact help information about snapshot
2013-11-16 12:23:18 -08:00
Linus Torvalds
0bde7294e2 pwm: Changes for v3.13-rc1
Mostly bug fixes and clean up. There is a new driver, which is actually
 moving a custom PWM driver from drivers/misc.
 
 The majority of the patches are enhancements to the device tree support
 in the pwm-backlight driver. Backlights can now additionally be powered
 using a regulator and enabled using a GPIO in addition to just the PWM
 input.
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Merge tag 'pwm/for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm changes from Thierry Reding:
 "Mostly bug fixes and clean up.  There is a new driver, which is
  actually moving a custom PWM driver from drivers/misc.

  The majority of the patches are enhancements to the device tree
  support in the pwm-backlight driver.  Backlights can now additionally
  be powered using a regulator and enabled using a GPIO in addition to
  just the PWM input"

* tag 'pwm/for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (30 commits)
  Documentation/pwm: Update supported SoC name for pwm-samsung
  pwm: samsung: Fix kernel warning while unexporting a channel
  MAINTAINERS: Move PWM subsystem tree to kernel.org
  Documentation/pwm: Fix trivial typos
  pwm-backlight: Remove unused variable
  pwm_backlight: avoid short blank screen while doing hibernation
  pwm-backlight: Fix brightness adjustment
  pwm: add ep93xx PWM support
  pwm-backlight: Allow for non-increasing brightness levels
  pwm-backlight: Add power supply support
  pwm-backlight: Use new enable_gpio field
  unicore32: Initialize PWM backlight enable_gpio field
  ARM: shmobile: Initialize PWM backlight enable_gpio field
  ARM: SAMSUNG: Initialize PWM backlight enable_gpio field
  ARM: pxa: Initialize PWM backlight enable_gpio field
  ARM: OMAP: Initialize PWM backlight enable_gpio field
  pwm-backlight: Add optional enable GPIO
  pwm-backlight: Track enable state
  pwm-backlight: Refactor backlight power on/off
  pwm-backlight: Improve readability
  ...
2013-11-16 12:21:40 -08:00
Vinod Koul
df12a3178d Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine
Pull dmaengine changes from Dan

1/ Bartlomiej and Dan finalized a rework of the dma address unmap
   implementation.

2/ In the course of testing 1/ a collection of enhancements to dmatest
   fell out.  Notably basic performance statistics, and fixed / enhanced
   test control through new module parameters 'run', 'wait', 'noverify',
   and 'verbose'.  Thanks to Andriy and Linus for their review.

3/ Testing the raid related corner cases of 1/ triggered bugs in the
   recently added 16-source operation support in the ioatdma driver.

4/ Some minor fixes / cleanups to mv_xor and ioatdma.

Conflicts:
	drivers/dma/dmatest.c

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-11-16 12:02:36 +05:30
Linus Torvalds
9073e1a804 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "Usual earth-shaking, news-breaking, rocket science pile from
  trivial.git"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
  doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
  doc: add missing files to timers/00-INDEX
  timekeeping: Fix some trivial typos in comments
  mm: Fix some trivial typos in comments
  irq: Fix some trivial typos in comments
  NUMA: fix typos in Kconfig help text
  mm: update 00-INDEX
  doc: Documentation/DMA-attributes.txt fix typo
  DRM: comment: `halve' -> `half'
  Docs: Kconfig: `devlopers' -> `developers'
  doc: typo on word accounting in kprobes.c in mutliple architectures
  treewide: fix "usefull" typo
  treewide: fix "distingush" typo
  mm/Kconfig: Grammar s/an/a/
  kexec: Typo s/the/then/
  Documentation/kvm: Update cpuid documentation for steal time and pv eoi
  treewide: Fix common typo in "identify"
  __page_to_pfn: Fix typo in comment
  Correct some typos for word frequency
  clk: fixed-factor: Fix a trivial typo
  ...
2013-11-15 16:47:22 -08:00
Linus Torvalds
4937e2a6f9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Updates for the input subsystem.  You will get an new drivers for
  Hyper-V synthetic keyboard and for Neonode zForce touchscreens, plus a
  bunch of driver fixes and cleanups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (49 commits)
  Revert "Input: ALPS - add support for model found on Dell XT2"
  arm: dts: am335x sk: add touchscreen support
  Input: ti_am335x_tsc - fix spelling mistake in TSC/ADC DT binding
  Input: cyttsp4 - replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  Input: mma8450 - add missing i2c_set_clientdata() in mma8450_probe()
  Input: mpu3050 - add missing i2c_set_clientdata() in mpu3050_probe()
  Input: tnetv107x-keypad - make irqs signed for error handling
  Input: add driver for Neonode zForce based touchscreens
  Input: sh_keysc - enable the driver on all ARM platforms
  Input: remove a redundant max() call
  Input: mousedev - allow disabling even without CONFIG_EXPERT
  Input: allow deselecting serio drivers even without CONFIG_EXPERT
  Input: i8042 - add PNP modaliases
  Input: evdev - fall back to vmalloc for client event buffer
  Input: cypress_ps2 - do not consider data bad if palm is detected
  Input: cypress_ps2 - remove useless cast
  Input: fix PWM-related undefined reference errors
  Input: ALPS - change secondary device's name
  Input: wacom - not all multi-interface devices support touch
  Input: nspire-keypad - add missing clk_disable_unprepare() on error path
  ...
2013-11-15 16:43:53 -08:00
Olof Johansson
6886059f2e Few clock fixes, a runtime PM fix, and pinctrl-single fix along
with few other fixes that popped up during the merge window.
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Merge tag 'omap-for-v3.13/fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Few clock fixes, a runtime PM fix, and pinctrl-single fix along
with few other fixes that popped up during the merge window.

* tag 'omap-for-v3.13/fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
  ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume
  doc: devicetree: Add bindings documentation for omap-des driver
  ARM: dts: doc: Document missing compatible property for omap-sham driver
  ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()
  ARM: OMAP: devicetree: fix SPI node compatible property syntax items
  pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed
  ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init()
  + sync with newer trunk
2013-11-15 15:17:59 -08:00
Linus Torvalds
6c0514ddd9 blackfin updates for Linux 3.13
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Merge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux

Pull blackfin updates from Steven Miao:
 "Blackfin gpio changes, add adi pinctrl driver, and bug fixes"

* tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
  blackfin: fix build warning for unused variable
  smp: bf561: and smb_wmb()/smp_rmb() at ipi send/receive
  pm: use GFP_ATOMIC when pm core call this function
  blackfin: serial: Add serial port_fer and port_mux early platform resources.
  blackfin: pinctrl-adi2: code cleanup after using pinctrl-adi2
  blackfin: adi gpio driver and pinctrl driver support
  bf609: update default config for spi
  Blackfin: bfin_gpio: Use proper mask for comparing pfunc
2013-11-15 14:27:22 -08:00
Linus Torvalds
98d38dd2ee OpenRISC updates for 3.13
- small cleanups to make allmodconfig pass
 - defconfig refresh
 - a handful of code sanitization patches
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Merge tag 'for-3.13' of git://git.openrisc.net/~jonas/linux

Pull OpenRISC updates from Jonas Bonn:
 - small cleanups to make allmodconfig pass
 - defconfig refresh
 - a handful of code sanitization patches

* tag 'for-3.13' of git://git.openrisc.net/~jonas/linux:
  openrisc: Refactor or32_early_setup()
  openrisc: Remove unused declaration of __initramfs_start
  openrisc: Use the declarations provided by <asm/sections.h>
  openrisc: Refresh or1ksim_defconfig for v3.12
  openrisc: Refactor 16-bit constant relocation
  openrisc: include: asm: Kbuild: add default "vga.h"
  openrisc: Makefile: append "-D__linux__" to KBUILD_CFLAGS
2013-11-15 14:26:38 -08:00
Linus Torvalds
f13399f033 Kconfig cleanups for v3.13
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull Kconfig cleanups from Mark Salter:
 "Remove some unused config options from C6X and clean up PC_PARPORT
  dependencies.  The latter was discussed here:

    https://lkml.org/lkml/2013/10/8/12"

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  c6x: remove unused COMMON_CLKDEV Kconfig parameter
  Kconfig cleanup (PARPORT_PC dependencies)
  x86: select ARCH_MIGHT_HAVE_PC_PARPORT
  unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT
  sparc: select ARCH_MIGHT_HAVE_PC_PARPORT
  sh: select ARCH_MIGHT_HAVE_PC_PARPORT
  powerpc: select ARCH_MIGHT_HAVE_PC_PARPORT
  parisc: select ARCH_MIGHT_HAVE_PC_PARPORT
  mips: select ARCH_MIGHT_HAVE_PC_PARPORT
  microblaze: select ARCH_MIGHT_HAVE_PC_PARPORT
  m68k: select ARCH_MIGHT_HAVE_PC_PARPORT
  ia64: select ARCH_MIGHT_HAVE_PC_PARPORT
  arm: select ARCH_MIGHT_HAVE_PC_PARPORT
  alpha: select ARCH_MIGHT_HAVE_PC_PARPORT
  c6x: remove unused parameter in Kconfig
2013-11-15 14:05:15 -08:00
Olof Johansson
ca439c9b98 Fixes for RTT & RTC interrupts that can fire early
during boot process and kill the system.
 This fix has been discussed for months and it is time
 for it to reach mainline.
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Merge tag 'at91-fixes-non-critical' of git://github.com/at91linux/linux-at91 into fixes

From Nicolas Ferre, fixes for early boot hangs on at91:

Fixes for RTT & RTC interrupts that can fire early during boot process
and kill the system.

* tag 'at91-fixes-non-critical' of git://github.com/at91linux/linux-at91:
  ARM: at91: fix hanged boot due to early rtt-interrupt
  ARM: at91: fix hanged boot due to early rtc-interrupt
2013-11-15 11:10:41 -08:00
Tony Lindgren
26273e02a0 ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
Otherwise we can get errors like:

arch/arm/mach-omap2/prm44xx.c:274: error: redefinition of ‘omap44xx_prm_reconfigure_io_chain’
arch/arm/mach-omap2/built-in.o: In function `default_finish_suspend':
arch/arm/mach-omap2/omap-mpuss-lowpower.c:95: undefined reference to `omap_do_wfi'

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-15 08:27:29 -08:00
Nishanth Menon
3522bf7bfa ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume
OMAP device hooks around suspend|resume_noirq ensures that hwmod
devices are forced to idle using omap_device_idle/enable as part of
the last stage of suspend activity.

For a device such as i2c who uses autosuspend, it is possible to enter
the suspend path with dev->power.runtime_status = RPM_ACTIVE.

As part of the suspend flow, the generic runtime logic would increment
it's dev->power.disable_depth to 1. This should prevent further
pm_runtime_get_sync from succeeding once the runtime_status has been
set to RPM_SUSPENDED.

Now, as part of the suspend_noirq handler in omap_device, we force the
following: if the device status is !suspended, we force the device
to idle using omap_device_idle (clocks are cut etc..). This ensures
that from a hardware perspective, the device is "suspended". However,
runtime_status is left to be active.

*if* an operation is attempted after this point to
pm_runtime_get_sync, runtime framework depends on runtime_status to
indicate accurately the device status, and since it sees it to be
ACTIVE, it assumes the module is functional and returns a non-error
value. As a result the user will see pm_runtime_get succeed, however a
register access will crash due to the lack of clocks.

To prevent this from happening, we should ensure that runtime_status
exactly indicates the device status. As a result of this change
any further calls to pm_runtime_get* would return -EACCES (since
disable_depth is 1). On resume, we restore the clocks and runtime
status exactly as we suspended with. These operations are not expected
to fail as we update the states after the core runtime framework has
suspended itself and restore before the core runtime framework has
resumed.

Cc: stable@vger.kernel.org # v3.4+
Reported-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-15 07:38:14 -08:00
Wei Yongjun
c27f2de754 ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()
In case of error, the function get_cpu_device() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-15 07:38:14 -08:00
Sebastian Ott
d795ddad36 s390/pci: implement hotplug notifications
When the availability of a pci function has changed by means
outside of our control we receive an availability event.
Implement/improve the handling of these notifications.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:42 +01:00
Sebastian Ott
605c36986c s390/scm_block: do not hide eadm subchannel dependency
Stop hiding scm_block's dependency to the eadm subchannel driver
(by using functions provided by the eadm subchannel instead of
wrappers provided by the scm bus).

This will help userspace recognizing module dependencies (e.g. for
building a ramdisk). As a side effect we can get rid of some code
reimplementing refcounting between those modules.

Reported-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:42 +01:00
Michael Holzheu
7b50da53f6 s390/sclp: Consolidate early sclp init calls to sclp_early_detect()
The new function calls the old ones. The sclp_event_mask_early() is removed
and replaced by one invocation of sclp_set_event_mask(0, 0).

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:41 +01:00
Michael Holzheu
acf6a004e6 s390/sclp: Move early code from sclp_cmd.c to sclp_early.c
The early SCLP driver code in sclp_cmd.c belongs to sclp_early.c
because it is independent from the 'normal' SCLP driver. So move
it to sclp_early.c

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:41 +01:00
Michael Holzheu
e657d8fe2f s390/sclp: Determine HSA size dynamically for zfcpdump
Currently we have hardcoded the HSA size to 32 MiB. With this patch the
HSA size is determined dynamically via SCLP in early.c.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:40 +01:00
Sebastian Ott
7d594322b2 s390/pci: implement pcibios_remove_bus
Implement pcibios_remove_bus to free arch specific data when a pci
bus is deregistered. While at it remove a useless kzalloc/kfree
wrapper.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:38 +01:00
Sebastian Ott
7a572a3ab1 s390/pci: improve handling of bus resources
Cleanup the functions for allocation and setup of bus resources. Do
not allocate the same name for each resource but use a per-bus name.
Also provide means to cleanup all resources allocated by a bus.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:37 +01:00
Hendrik Brueckner
aec644e56e s390/boot: Install bzImage as default kernel image
The compressed kernel image is built since commit "[S390] add support for
compressed kernels" (1844c9bc0b).
Now install the compressed kernel image (bzImage) as default.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-15 14:08:36 +01:00
Johan Hovold
94c4c79f2f ARM: at91: fix hanged boot due to early rtt-interrupt
Make sure the RTT-interrupts are masked at boot by adding a new helper
function to be used at SOC-init.

This fixes hanged boot on all AT91 SOCs with an RTT, for example, if an
RTT-alarm goes off after a non-clean shutdown (e.g. when using RTC
wakeup).

The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all
AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or
software reset. This means that their interrupts may be enabled during
early boot if, for example, they where not disabled during a previous
shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a
user reset). Furthermore, an RTC or RTT-alarm may also be active.

The RTC and RTT-interrupts use the shared system-interrupt line, which
is also used by the PIT, and if an interrupt occurs before a handler
(e.g. RTC-driver) has been installed this leads to the system interrupt
being disabled and prevents the system from booting.

Note that when boot hangs due to an early RTC or RTT-interrupt, the only
way to get the system to start again is to remove the backup power (e.g.
battery) or to disable the interrupt manually from the bootloader. In
particular, a user reset is not sufficient.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org # 3.11.x
2013-11-15 12:13:33 +01:00
Johan Hovold
6de714c21a ARM: at91: fix hanged boot due to early rtc-interrupt
Make sure the RTC-interrupts are masked at boot by adding a new helper
function to be used at SOC-init.

This fixes hanged boot on all AT91 SOCs with an RTC (but RM9200), for
example, after a reset during an RTC-update or if an RTC-alarm goes off
after shutdown (e.g. when using RTC wakeup).

The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all
AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or
software reset. This means that their interrupts may be enabled during
early boot if, for example, they where not disabled during a previous
shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a
user reset). Furthermore, an RTC or RTT-alarm may also be active.

The RTC and RTT-interrupts use the shared system-interrupt line, which
is also used by the PIT, and if an interrupt occurs before a handler
(e.g. RTC-driver) has been installed this leads to the system interrupt
being disabled and prevents the system from booting.

Note that when boot hangs due to an early RTC or RTT-interrupt, the only
way to get the system to start again is to remove the backup power (e.g.
battery) or to disable the interrupt manually from the bootloader. In
particular, a user reset is not sufficient.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org # 3.11.x
2013-11-15 12:13:33 +01:00